6
2 Choose must or mustn't to complete the
sentences. Say the answers aloud.
1 You ... walk across the road.
2 You
stand behind the line.
SUND VEND THE LINE
3 You ... talk.
SILENCE
4 You
take off your shoes.
EX)
5 You
walk on the grass.
Don't walk
on the grass
.
6 You
use your mobile phone.
2
ito tunc